\x09 \x09 \x09 \x09 \x09 \x09\x09\x09 \x09 \x09 \x09\x09 \x09 \x09\x09 \x09 \x09 \x09 \x09\x09\x09\x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09\x09 \x09 \x09 \x09 \x09
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
Disassemble:
push +1(1b) mark null push +1(1b) add dup dup getc retr push +10(4b) swap sub jneg null push +1(1b) mark +0(0b) push +1(1b) add dup retr putc dup dup add copy +2(2b) sub jzero -0(0b) dup copy +2(2b) sub jneg +0(0b) push +1(1b) jump null mark -0(0b) push +32(6b) putc jump +0(0b)